The ABC understands the most senior medical officer working with asylum seekers on Nauru has been removed from the island amid an ongoing stoush over the transfer of patients off the island.

Key points:

The Queensland doctor was employed by an Australian Government contractor as a locum on Nauru

On Wednesday, the Australian Federal Court heard the Nauruan Government had blocked the medical evacuation of a woman needing psychiatric treatment

Nauru is currently hosting the Pacific Islands Forum event, and have banned the ABC from attending

Dr Christopher Jones, a Queensland GP, was told by the Australian Government's contractor, International Health and Medical Services(IHMS), that his visa was revoked last Thursday and he left the island the following day.

It was the Gold Coast doctor's second deployment to Nauru as a locum with IHMS.

It comes as an urgent Federal Court hearing on Wednesday heard the Nauruan Government blocked the medical evacuation of a woman needing urgent psychiatric treatment from Nauru, despite Australian court orders stipulating she be brought to Australia for treatment.